At one point the average price of regular unleaded gasoline was ​$3.46 per gallon. Assume that the standard deviation price per gallon is ​$0.04 per gallon and use​ Chebyshev's inequality to answer the following. ​(a) What percentage of gasoline stations had prices within 3 standard deviations of the​ mean?
​(b) What percentage of gasoline stations had prices within 1.5 standard deviations of the​ mean? What are the gasoline prices that are within 1.5 standard deviations of the​ mean?
​(c) What is the minimum percentage of gasoline stations that had prices between ​$3.30 and ​$​3.62